Hi, Suppose I have the following circuit (excuse the ugly drawing): Suppose the generator is 1A and all the resistance are 1 Ohm (the values are not important). Moreover, suppose I already have all the voltages in V1, V2, V3, V4 (which I got using nodal analysis), and V0 is set to ground (V0 = 0). How do I get the total resistance from point A to point B (or node V0)? Can I use the results I got from nodal analysis for this? Please note my knowledge of electrical circuits is very basic, as this is not my field. I am using this to build an artificial Hex player, and resistance provides a good connectivity measure from each side of the board (see page 2 in http://home.earthlink.net/~vanshel/VAnshelevich-01.pdf).